Dynamic snitching
By default, all snitches use a dynamic snitch layer that monitors read latency and, when possible, routes requests away from poorly-performing nodes.
The dynamic snitch is enabled by default and is recommended for use in most deployments.
For information on how this works, see the Dynamic snitching in Cassandra: past, present, and future blog post.
Configure dynamic snitch thresholds for each node in the cassandra.yaml configuration file.
Also, see the properties listed under About failure detection and recovery.
